The maximum adiabatic flame temperature is attained, when the fuel is burnt with

Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in

A

Air

B

Oxygen

C

Either A or B

D

Either A or C without gain or loss of heat

The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.

A

Lower than

B

Higher than

C

Same as

D

Not related to

The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.

A

Lower than

B

Higher than

C

Same as

D

Not related to

Actual flame temperature is always lower than the adiabatic flame temperature, because there is

A

No possibility of obtaining complete combustion at high temperature

B

Always loss of heat from the flame

C

Both A & B

D

Neither A nor B

For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will

A

Increase

B

Decrease

C

Increase or decrease depending on the fuel type

D

Not change

Adiabatic flame temperature of a fuel is dependent on the initial temperature of

A

Fuel

B

Air

C

Both A & B

D

Neither A nor B

The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always

A

1

B

> 1

C

Unpredicatable

The maximum adiabatic flame temperature in air as compared to that in pure oxygen is

A

Much lower

B

Much higher

C

Same

D

Either lower or higher, depends on the type of fuel

A burnt child dreads the Fire. here `burnt is a/an______.

A

finite verb

B

gerund

C

present participle

D

past participle

A burnt child dreads the fire. Here burnt is.....

A

finite verb

B

gerund

C

present participle

D

past participle

The maximum adiabatic flame temperature is attained, when the fuel is burnt with

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